Home / 668,916.98-923,106.07-382,443.07

Finding the Fourth Proportional to 668,916.98, 923,106.07 and 382,443.07

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Solution

The fourth proportional to 668,916.98, 923,106.07 and 382,443.07 is: 527,771.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,916.98 : 923,106.07 = 382,443.07 : x
  2. Step 2: Convert to fraction form
    668,916.98/923,106.07 = 382,443.07/x
  3. Step 3: Cross multiply
    668,916.98x = 923,106.07 × 382,443.07
  4. Step 4: Simplify right side
    668,916.98x = 353,035,514,730.91
  5. Step 5: Solve for x
    x = 353,035,514,730.91/668,916.98
  6. Step 6: Final answer
    x = 527,771.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.